POWERSCREEN MK II [1561292] POWERSCREEN MK II Sand Science Inc Beaufort, South Carolina POWERSCREEN 830 [1490507] POWERSCREEN 830 Sand Science Inc Beaufort, South Carolina 2008 EXTEC IC13 [1391922] 2008 EXTEC IC13 Sand Science Inc Beaufort, South Carolina 2005 DOPPSTADT DW3060K [471802] 2005 DOPPSTADT DW3060K Sand Science Inc Beaufort, South Carolina 2005 MORBARK 1300A [471682] 2005 MORBARK 1300A Sand Science Inc Beaufort, South Carolina